A 1941 print advertisement for typewriter company Royal Portable shows a group of campers using one of the portable typewriters at camp.
The copy for the beginning of the ad states:
Summer vacation, you’re probably saying, should be a time for rest and physical development only.
True. But learning to use a typewriter is more fun than work for a youngster. And he’ll return to school with fingers that can keep pace with the racing thoughts of youth – not chained to the creeping progress of his pencil. For, the greater speed and ease of typing will free his mind for thinking rather than writing.